综合参考各类储层特有的沉积模式、水流能量分布规律和平面非均质特征，对流动单元平面、剖面及空间展布进行了描述。
General considerate the sediment model, the law of current distribution and the plane heterogeneous in all kinds of reservoir, describe the distribution of flow unit in plain, section and space.
基于储层非均质性的层次性，可分步骤建立流动单元模型。
According to the hierarchical properties of the reservoir heterogeneity, the flow unit model can be founded by following steps.
具原因在于公式推导中假定地层是均质的、 流体做单相流动等。
The reason is that the derived equation assumes the formation is homogeneous and fluid flow is single phase.
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